An artist’s illustration of Eokinorhynchus rarus, one of the oldest heavily armoured worms in the planet’s history. It lived on the seabed and on beaches 535 million years ago, was smaller than a grain of rice, and had a mouth full of teeth set on top of its head. Photo: Nanjing Institute of Geology and Palaeontology

The Chinese ‘mud dragon’ that helped change the world? Spiky, armoured worm that lived half a billion years ago may unriddle Cambrian explosion

Scientists discover ancient species of worm in China’s Sichuan that may have just preceded evolutionary event when life exploded on planet earth.

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An artist’s illustration of Eokinorhynchus rarus, one of the oldest heavily armoured worms in the planet’s history. It lived on the seabed and on beaches 535 million years ago, was smaller than a grain of rice, and had a mouth full of teeth set on top of its head. Photo: Nanjing Institute of Geology and Palaeontology
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